libnginx-mod-http-ndk 1.16.1-0ubuntu2 (s390x binary) in ubuntu eoan

The NDK is an Nginx module that is designed to extend the core functionality of
the excellent Nginx webserver in a way that can be used as a basis of other
Nginx modules.
.
It has functions and macros to deal with generic tasks that don't currently
have generic code as part of the core distribution. The NDK itself adds few
features that are seen from a user's point of view - it's just designed to help
reduce the code that Nginx module developers need to write.